Perhaps you should try some spelling variations:
communication modes » communication costs, communication media, communication methods
urban development » human development
la communication » _ communication, mass communication, oral communication
information age » information gaps, information laws, information _
development can » development bank, development band, development case
modes urban » notes urban

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologies _ information age de la communication modes urban development can afrique.*.